6.1-stable review patch. If anyone has any objections, please let me know.
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From: Namjae Jeon linkinjeon@kernel.org
[ Upstream commit 48b47f0caaa8a9f05ed803cb4f335fa3a7bfc622 ]
Uninitialized rd.delegated_inode can be used in vfs_rename(). Fix this by setting rd.delegated_inode to NULL to avoid the uninitialized read.
Fixes: 74d7970febf7 ("ksmbd: fix racy issue from using ->d_parent and ->d_name") Reported-by: Coverity Scan scan-admin@coverity.com Signed-off-by: Namjae Jeon linkinjeon@kernel.org Signed-off-by: Steve French stfrench@microsoft.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/smb/server/vfs.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/fs/smb/server/vfs.c b/fs/smb/server/vfs.c index 58a6665f1c3ab..5d2bb58d77e80 100644 --- a/fs/smb/server/vfs.c +++ b/fs/smb/server/vfs.c @@ -744,6 +744,7 @@ int ksmbd_vfs_rename(struct ksmbd_work *work, const struct path *old_path, rd.new_dir = new_path.dentry->d_inode, rd.new_dentry = new_dentry, rd.flags = flags, + rd.delegated_inode = NULL, err = vfs_rename(&rd); if (err) ksmbd_debug(VFS, "vfs_rename failed err %d\n", err);